/* 手机列表页样式 */
.nav {
    overflow: hidden;
}
.sk {
    position: absolute;
    left: 190px;
    top: 40px;
    border-left: 1px solid #cb1420;
    padding: 5px 10px 0px 15px;
}
.sk_list {
    float: left;
}
.sk_list li {
    float: left;
    
}
.sk_list li a {
    display: block;
    font-size: 16px;
    color: #000000;
    line-height: 47px;
    font-weight: 700;
    padding: 0 30px;

}
.sk_con {
    float: left;
}
.sk_con ul li {
    float: left;
}
.sk_con ul li a {
    display: block;
    line-height: 50px;
    font-size: 14px;
    padding: 0 20px;
    
}
.sk_bd ul li {
  /* 边框被压住了 清除下浮动 */
   float: left;
    overflow: hidden;
    margin-right: 13px;
    width: 290px;
    height: 460px;
    /* 边框会抖动的原因是li本身就有边框 又加了鼠标经过的边框 两者会重叠抖动，把原生的边框设置为透明的 完美解决 */
    border: 1px solid transparent;
}
.sk_bd ul li:nth-child(4n) {
    margin-right: 0;
}

.sk_bd ul li:hover {
    border: 1px solid #cb1420;
}